Chevrolet Silverado / GMC Sierra. Manual — part 620

Fig. 9: Upper Valve Rocker Arm Cover Bolts Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

2. Install the upper valve rocker arm cover bolts.

Tighten: Tighten the upper valve rocker arm cover bolts in the proper sequence to 8 N.m
(71 lb in).

FUEL INJECTORS INSTALLATION

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 10: Identifying Fuel Injector Copper Washers
Courtesy of GENERAL MOTORS CORP.

1. Install a new O-ring onto the fuel injector.

2. Lubricate the O-ring with engine oil.

3. Install a new copper washer into the fuel injector bore in the cylinder head.

4. Install the fuel injector right bracket pin.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 11: View Of Left Injector Bracket Pins
Courtesy of GENERAL MOTORS CORP.

5. Install the fuel injector left bracket pin.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 12: View Of Right Fuel Injectors W/Brackets
Courtesy of GENERAL MOTORS CORP.

6. Install the right fuel injector with fuel injector bracket.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado